[Tutor] Name of a module within itself

[steve]

On Saturday 21 July 2001 23:33, D-man wrote:
> On Sat, Jul 21, 2001 at 04:02:08PM +0530, lonetwin@yahoo.com wrote:
> |  Hi there,
> |   One quick question, suppose I create a file (say 'foo.py'), that ha=
s
> | classes MyFoo, HisFoo, HerFoo, and a function main(). Now, from main =
I
> | need to refer to the name of the module (foo), such that, I could do
> | something like:
> |
> | def main():
> | =09....
> | =09getattr([refer to this module], 'HisFoo')
> | =09....
> |   how do I do that ?
>
> Why do you want to use the getattr function?  You could simply say
>
> def main() :
>     ...
>     HisFoo
>     ...
>
> since main and HisFoo are in the same module.  That will be clearer
> and works just as well.  I don't think there is any way around
> accessing a module-level variable like that.  Inside a module there is
> the __name__ attribute that is a string containing the name of the
> module.  You could use sys.modules or __import__ to get the module
> object based on the name, but you have to get the name by referencing
> a module object and you might as well just get that class directly.
>

Hi there D-man,
 Thanx for replying....although I can't really use it like you said. Let =
me=20
explain, here's what I'm trying to do:

class Base:
=09....
=09....
=09....

class Sub1(Base):
=09ObjA =3D 'foo'
=09....
=09....

class Sub2(Base):
=09ObjA =3D 'bar'

def main():
=09....
=09....
=09x =3D funcReturnsSub1orSub2() # x can be either a Sub1 or a Sub2

=09y =3D getattr([refer to this module], x).ObjA
=09# y would be an ObjA irrespective of what x is, so y=3D'foo' | y=3D'ba=
r'

what I wrote above can be done from the prompt, like I showed in my previ=
ous=20
mail:

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[steve@mercury ~]$ python
Python 2.1 (#3, Jun 25 2001, 13:39:27)
[GCC 2.95.3 19991030 (prerelease)] on linux2
Type "copyright", "credits" or "license" for more information.
>>> import foo
>>> getattr(foo, 'HisFoo')
<class foo.HisFoo at 0x810fde4>
>>> getattr(foo, 'HisFoo').x
'foo'
>>> getattr(foo, 'HerFoo').x
'bar'
>>>

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
where the file 'foo.py' contains:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
#!/usr/bin/python
=20
class MyFoo:
         pass
class HisFoo:
         x =3D 'foo'
class HerFoo:
         x =3D 'bar'

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Please tell me there's a way to do this, else I'll have to rethink stuff,=
 an'=20
thinking is not something that is happening naturally these days :) !!!

Peace
Steve
--=20
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Debug is human, de-fix divine.
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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